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Finding the Fourth Proportional to 636,443.82, 878,282.73 and 346,053.06

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Solution

The fourth proportional to 636,443.82, 878,282.73 and 346,053.06 is: 477,547.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,443.82 : 878,282.73 = 346,053.06 : x
  2. Step 2: Convert to fraction form
    636,443.82/878,282.73 = 346,053.06/x
  3. Step 3: Cross multiply
    636,443.82x = 878,282.73 × 346,053.06
  4. Step 4: Simplify right side
    636,443.82x = 303,932,426,261.65
  5. Step 5: Solve for x
    x = 303,932,426,261.65/636,443.82
  6. Step 6: Final answer
    x = 477,547.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.